Kern HUM 1000K500, HUM 3000K100, HUS150K50, HUS300K100, HUS600K200 User guide

KERN & Sohn GmbH

Ziegelei 1	Tel: +49-[0]7433- 9933-0
D-72336 Balingen	Fax: +49-[0]7433-9933-149
E-Mail: [e-mail]	Internet: www.kern-sohn.com

Instruction Manual

Electronic Crane Scales

Logbook

Regular maintenance and care

KERN HUS/HUM

Version 3.1 11/2011 GB

HUS/HUM-BA-e-1131

GB	KERN HUS/HUM
	Version 3.1 11/2011
	Operating instructions / logbook
	Electronic Crane Scales

Contents

1.Technical data _________________________________________________4

1.1Dimensions (mm) _____________________________________________________ 6

2.	G eneral S afety Ins tructions ______________________________________7

3.The crane s cales at a glance ____________________________________10

3.1Overview __________________________________________________________ 10

3.2Display ____________________________________________________________ 12

3.3Keyboard __________________________________________________________ 13

3.4Radio remote control _________________________________________________ 14

3.5Label______________________________________________________________ 15

4.C ommis s ioning _______________________________________________16

4.1Unpacking _________________________________________________________ 16

4.2Checking the original dimensions________________________________________ 16

4.3Power supply - rechargeable battery mode ________________________________ 17

4.4Suspending the balance_______________________________________________ 18

5.Operation K E R N HUM __________________________________________19

5.1Safety instructions ___________________________________________________ 19

5.2Loading the crane scales ______________________________________________ 21

5.3Turn on/off _________________________________________________________ 24

5.4Set balance to zero __________________________________________________ 24

5.5Taring _____________________________________________________________ 25

5.6Weighing __________________________________________________________ 25

5.7Record weight value (freeze) ___________________________________________ 26

5.8Automatic switch-off (AUTO OFF) _______________________________________ 26

6.Operation K E R N HUS __________________________________________28

6.1Safety instructions ___________________________________________________ 28

6.2Loading the crane scales ______________________________________________ 30

6.3Turn on/off _________________________________________________________ 33

6.4Set balance to zero __________________________________________________ 33

6.5Taring _____________________________________________________________ 34

6.6Weighing __________________________________________________________ 34

6.7Record weight value (freeze) ___________________________________________ 35

6.8Automatic switch-off (AUTO OFF) _______________________________________ 35

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7.Adjus tment ___________________________________________________37

7.1KERN HUM ________________________________________________________ 37

7.2KERN HUS_________________________________________________________ 39

8.E rror mes s ages _______________________________________________40

9.C leaning, Maintenance and Dis pos al ______________________________40

9.1Cleaning and Disposal ________________________________________________ 40

9.2Regular maintenance and care _________________________________________ 41

9.3Checklist „regular maintenance“, (see chapter 9.2) __________________________ 42

9.4KERN HUM ________________________________________________________ 42

9.5KERN HUS_________________________________________________________ 45

10.E nclos ure ____________________________________________________48

10.1Checklist „Enhanced maintenance“ (General revision) _______________________ 48

10.2List „spare parts and repair of safety-relevant parts“ _________________________ 49

11.Declaration of C onformity _______________________________________51

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1. Technical data

	KERN			HUM 1000K500			HUM 3000K100
	Readability (d)			500 g			1 kg
	Weighing range (max)			1 000 kg			3 000 kg
	Taring range (subtractive)			1 000 kg			3 000 kg
	Reproducibility			500 g			1 kg
	Linearity			±1 kg			±2 kg
	Recommended adjustment			1 t (M3)			2 t (M3)
	weight, not added (class)
	Possible Adjustment Points			500 kg; 1 t			1 t; 2 t
	Stabilization time				2 s
	Precision			0.2 % of max.
	Warm-up time				10 min
	Unit				kg
	Allowable ambient			0…+40 °C
	temperature
	Relative humidity			0 to 85 %, non-condensing
	Input Voltage			100 240VAC
	Secondary voltage			12VDC, 500 mA
	powerpack
	Rechargeable battery			Output 6 V 10 Ah
				Service life 80 h
	(standard equipment)
				Loading time 8 h
	Display			Digit height 25 mm
	Housing size W x D x H,			210 x 228 x 180
	(mm)
	Housing material			Metal, lacquered
	Material hooks and shackle			Painted steel
	Net weight (kg)		16			18
	Remote control (standard			1 battery (23A, 12V) included
	equipment)

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	KERN			HUS150K50			HUS300K100			HUS600K200
	Readability (d)			0.05 kg			0.1 kg			0.2 kg
	Weighing range (max)			150 kg			300 kg			600 kg
	Taring range (subtractive)			150 kg			300 kg			600 kg
	Reproducibility			0.05 kg			0.1 kg			0.2 kg
	Linearity			± 0.1 kg			±0.2 kg			±0.4 kg
	Recommended adjustment			100 kg (M3)			200 kg (M3)			2x200 kg (M3)
	weight, not added (class)
	Possible Adjustment Points			40 kg; 100 kg			100 kg; 200 kg			200 kg; 400 kg
	Stabilization time						2 s
	Precision						0.2 % of max.
	Warm-up time						10 min
	Unit						kg
	Allowable ambient						0…+40 °C
	temperature
	Relative humidity			0 to 85 %, non-condensing
	Input Voltage						100 240VAC
	Secondary voltage						9VDC, 500 mA
	powerpack
	Rechargeable battery				Output 6 V 4.5 Ah
							Service life 120 h
	(standard equipment)
							Loading time 8 h
	Display				Digit height 23 mm
	Housing size W x D x H,					150 x 145 x 160
	(mm)
	Housing material						Plastic
	Material hooks and shackle						Painted steel
	Net weight (kg)		4.0							18
	Remote control (standard			2 x 1.5 V AAA included
	equipment)

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1.1Dimensions (mm)

	KERN HUS							KERN HUM
		A	B		C	D			A	B	C	D
HUS150K50		24	14		330	380	HUM 1000K500		56	42	550	620
HUS300K100		24	14		330	380	HUM 3000K100		73	45	580	650
HUS600K200		24	14		350	400

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2. General Safety Instructions

Duties of the owner-operator

Follow the national accident prevention regulations as well as the working, operating and safety regulations of the owner-operator.

Observe all safety regulations of the crane manufacturer.

The balance may only be used for the proposed purpose. Any type of use which is not specified in these operating instructions, will be considered as improper use. The customer is solely responsible for material damage and injury of persons resulting from an improper use, Messrs. KERN & Sohn will not be liable under any circumstance.

Messrs . KERN & Sohn cannot be held liable, if the crane scales are modified or used improperly and if damage is resulting from such use.

Carry out regular maintenance and care of the crane scales, the crane and the load suspension devices (see chapter 9).

Log the test result and keep it in the logbook.

Organizational measures

Only trained and instructed staff may operate the balance.

Make sure that the operating instructions are kept nearby the operation site of the crane scales.

Assembly, commissioning and maintenance should only be carried out by trained specialists.

Repair of safety-relevant pieces may only be carried out by KERN or by service partners authorized by Messrs. KERN. (competence certificate or training).

Use original spare parts only.

All repairs and spare parts must be documented by the service partner (see list, chap. 10.2).

All maintenance must be documented (see checklist chap. 9.3).

Load suspending components may only be exchanged as a complete spare parts set. The dimensions of the new components must be noted (see checklist chapter

9.3).

Environmental conditions

Never operate the crane scales in explosive environment. The serial version is not explosion protected.

Operate the crane scales only under environmental conditions as specified in these operating instructions (especially in chapter 1 „Technical data“).

Do not expose the crane scales to strong humidity. Non-permitted condensation (condensation of air humidity on the appliance) may occur if a cold appliance is taken to a considerably warmer environment. In this case, acclimatize the disconnected appliance for ca. 2 hours at room temperature.

Do not operate the crane scales in corrosive environment.

Protect the crane scales against high humidity, vapours and dust.

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Major display deviations (incorrect weighing results) may be experienced should electromagnetic fields (e.g. due to mobile phones or radio equipment), static electricity accumulations or instable power supply occur. Change location or remove source of interference.

Proper use

The balance you purchased is intended to determine the weighing value of material to be weighed. It is intended to be used as a “non-automatic“ balance, i.e. the material to be weighed is suspended on the crane hook only vertically, manually, carefully and without jerks. As soon as a stable weighing value is reached the weighing value can be read.

Use the crane scales only for lifting and weighing of freely movable loads.

Danger of injury due to improper use. Not allowed are e.g.:

-Exceeding the allowed nominal load of crane, crane scales or any type of load attachment devices

-Conveying persons,

-Pulling loads over an inclined surface,

-Tearing-off, pulling or towing loads.

Modifications or reconstructions of the crane scales or of the crane are not allowed.

Improper Use

Do not use balance for dynamic weighings. In the event that small quantities are removed or added to the material to be weighed, incorrect weighing results can be displayed due to the “stability compensation“. (Example: Slowly draining fluids from a container suspended on the balance.) Do not leave permanent load suspended on the balance. This may damage the measuring system as well as safety-relevant parts.

The balance may only be used according to the described conditions. Other areas of use must be released by KERN in writing.

Warranty

Warranty claims shall be voided in case

Our conditions in the operation manual are ignored

The appliance is used outside the described uses

The appliance is modified or opened

Mechanical damage and damage caused by media, liquids,

Natural wear and tear

The appliance is improperly set up or incorrectly electrically connected

The measuring system is overloaded

Safe working

Do not stand underneath suspended loads!

Position the crane in a way that the load is lifted vertically.

When working with the crane and crane scales wear personal safety equipment (helmet, safety shoes etc.).

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Monitoring of Test Resources

In the framework of quality assurance the measuring-related properties of the balance and, if applicable, the testing weight, must be checked regularly. The responsible user must define a suitable interval as well as type and scope of this test. Information is available on KERN’s home page (www.kern-sohn.com) with regard to the monitoring of balance test substances and the test weights required for this. In KERN’s accredited DKD calibration laboratory test weights and balances may be calibrated (return to the national standard) fast and at moderate cost.

Testing upon acceptance

When receiving the appliance, please check packaging immediately, and the appliance itself when unpacking for possible visible damage.

Initial Commissioning

In order to obtain exact results with the electronic balances, your balance must have reached the operating temperature (see warming up time chap. 1).

During this warming up time the balance must be connected to the power supply

(mains, accumulator or battery).

The accuracy of the balance depends on the local acceleration of gravity.

Strictly observe hints in chapter Adjustment. For checking original dimensions, s. chap. 4.2

Shutdown and storage

Take off the crane scales from the crane and dismantle all load attachment devices from the crane scales.

Do not store the crane scales at open air

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3. The crane scales at a glance

The crane scales are a multi-purpose and cost-saving solution for overhead weighing applications such as e.g. recycling, metal processing, machine engineering, transport and logistics.

With the radio remote control, operation will be more comfortable yet.

3.1 Overview KERN HUS

1Eyelet

2Display

3Keyboard

4Safety bracket

5Hook, revolvable

6For radio remote control, s. chap. 3.4

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KERN HUM

1Shackle

2Antenna

3Display

4Keyboard

5Safety bracket

6Hook, revolvable

7For radio remote control, s. chap. 3.4

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3.2Display

1.KERN HUS

•The indicator  appears next to ZERO when weight is around Zero point range.

•The indicator appears next to TARE after scales have been tared.

•The indicator next to „kg“ shows that the weight unit currently displayed is „kg“.

2. KERN HUM

•The LED above ZERO is illuminated when weight is around Zero point range.

•The LED above TARE is illuminated after scales have been tared.

•The LED above ZERO is illuminated when the weight unit currently displayed is „kg“.

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3.3Keyboard

1.KERN HUS

Taste		Funktionsbeschreibung
ON/ZERO		•	Turn on the balance
TARE		•	Taring
		•	Select function in menu
MODE		•	Select menu settings
		•	Turn on or off backlight
HOLD		• Record weight value (freeze)
		•	Exit menu
OFF		•	Turn off the balance

2. KERN HUM

	Key	Description of function
	ZERO	•	Zeroing
	TARE	•	Taring
		•	Select function in menu
	MODE	•	Select menu settings
	HOLD	• Record weight value (freeze)
		•	Exit menu
	POWER	•	Turn on or off the balance

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3.4Radio remote control

The balance can be operated by the radio remote control like by a keyboard. All functions (excepted POWER ON/OFF) can be selected.

The LED should light up each time a key is pressed. If it does not light up, the batteries in the remote control must be exchanged.

1. HERN HUS

Range on free surface (free of buildings) approx. 2.5 m.

	Key	Corresponding
	Remote		Function
	control	key on scales
			Standby mode
	POWER	ON/ZERO	
			Weighing mode
	ZERO	ON/ZERO	Zeroing
	TARE	TARE	Taring
	MODE	MODE	Select menu settings
			Turn on or off backlight
	HOLD	HOLD	Record weight value
			(freeze)

2. HERN HUM

Range on free surface (free of buildings) approx. 25 m.

	Key	Corresponding
	Remote		Function
	control	key on scales
	Z	ZERO	Zeroing
	T	TARE	Taring
	M	MODE	Select menu settings
	H	HOLD	Record weight value
			(freeze)

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3.5Label

 Do not exceed nominal load of crane scales.

(Example)

The product conforms to the requirements of the German Equipment and Product Safety Act.

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4. Commissioning

Attention: Always observe chapter 2 „General Safety Instructions“!

4.1Unpacking

		Once delivered and unpacked, crane scales will not be
		taken back.
	SAFETY	The crane scales have been sealed by Messrs. KERN.
			Shackles and hooks are sealed by Sella tape.
	INSTRUCTIONS
			The packaging is also sealed by adhesive tape.
	for protection against
	break		+Broken seal obliges to purchase.
		Thanks for your comprehension.
		Your KERN Quality assurance team
		The crane scales are compact and quite heavy.
		 Remove the scales from packaging only with the help of
			a second person.
	CAUTION	 Use a lifting device such as a crane or a forklift truck.
			Secure the scales that they cannot fall down when they
	Danger for the back!		are lifted.

Only use original packaging for returning.

Make sure that all parts are completely present.

•Crane scales

•Rechargeable battery

•Mains adapter

•Remote control

•Operating instructions (logbook)

4.2Checking the original dimensions

Enter the original dimensions shown on the production data sheet in the grey boxes of checklist chap. 9.3.

Check original dimension of crane scales; for implementation see chap. 9.2 „Regular Maintenance“

Enter all data (date, tester, results) in the first line under „Inspection before first use“ in the checklist (see chapter 9.3)

If the dimensions of your first safety inspection do not match those of KERN, the balance must not be put into operation. In this case

please contact a service partner authorised by Messrs. KERN.

CAUTION

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